From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Instructions for fitting a Bentley 60 Engine into a Wraith III chassis, focusing on cylinder head and carburetter air silencer modifications.
| Identifier | ExFiles\Box 123\5\ scan0183 | |
| Date | 24th November 1938 | |
| [Redacted] c. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. [Redacted] 10HH [Signature] BY/CS5/EH.24.11.38. Re Bentley 60 Engine in Wraith III Chassis. Cylinder Head - Sec:5050. Carburetter Air Silencer - Sec:5082. Further to our memo' BY/CS1/EH.22.11.38 (Sec:5050), please receive herewith blue prints of the following new drawing, which will also be required on Sec:5050. EB.4475 Bracket - Air Silencer Support 2 off. Please instruct as required. The remainder of the parts to LOP. EB.4007. It will also be necessary to have 4 .250 tapped holes in the rocker cover to accommodate the air silencer support bracket studs. 2 holes are spaced at 1.175±5 from the C.L. of the securing stud holes towards the near side of the engine and 2 at .853±5 towards the off side. One pair being 6.070±5 in front of centre securing stud hole and the other pair 7.600±5 to the rear. All holes tapped normal to profile of rocker cover. Section 5082. This section is to the standard Wraith LOP. EW.868. This completes our instructions for both sections mentioned for the above experiment. One of HBS's prints attached to Roy{Sir Henry Royce}/Les's copy of this memo. BY/CS. | ||